Modify the Mathcad program in Figure 3.6 to repeat Example 3.9, but with $F_{L}=5.0 \mathrm{~mol} / \mathrm{m}^{2}$-s. Everything else remains constant.

Data From Example 3.9:-

A wetted-wall absorption tower is fed with water as the wall liquid and an ammonia– air mixture as the central-core gas. At a particular point in the tower, the ammonia concentration in the bulk gas is 0.60 mol fraction, that in the bulk liquid is 0.12 mol fraction. The temperature is 300 K, and the pressure is 1 atm. Ignoring the vaporization of water, calculate the local ammonia mass-transfer flux. The rates of flow are such that F_L = 3.5 mol/m2-s, and F_G = 2.0 mol/m2-s. The equilibrium- distribution data for the system at 300 K and 1 atm are those shown graphically in Figure 3.1, and algebraically in Example 3.3.

Figure 3.6:-

Transcribed Image Text:

Solver Constraints Guess Values x=0.2 YA = 1.0 YA=0.5 YA 1-0.4. 0.88\ 1-xA) 1.75 7A=3.5858. (x2)-0.622. (A) + 0.156 YA 10.51 YA A [x] = x <0.3 [0.231] YA Find (AYA,YA)= 0.494| [VA] [0.204] Figure 3.6 Mathcad solution of Example 3.9a.